25780525055 has 8 divisors (see below), whose sum is σ = 31162445712. Its totient is φ = 20473876288.

The previous prime is 25780525037. The next prime is 25780525123. The reversal of 25780525055 is 55052508752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25780525055 - 2⁸ = 25780524799 is a prime.

It is a super-2 number, since 2×25780525055² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25780524997 and 25780525015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18817217 + ... + 18818586.

It is an arithmetic number, because the mean of its divisors is an integer number (3895305714).

Almost surely, 2^25780525055 is an apocalyptic number.

25780525055 is a deficient number, since it is larger than the sum of its proper divisors (5381920657).

25780525055 is a wasteful number, since it uses less digits than its factorization.

25780525055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37635945.

The product of its (nonzero) digits is 700000, while the sum is 44.

The spelling of 25780525055 in words is "twenty-five billion, seven hundred eighty million, five hundred twenty-five thousand, fifty-five".